31, 2015 4 Revision 1.2
Contents
List of Figures .......................................................................................................................................................................... 6
List of Tables ........................................................................................................................................................................... 7
Pin Configuration ..................................................................................................................................................................... 8
Pin Description ........................................................................................................................................................................ 9
Strapping Options ................................................................................................................................................................. 13
Functional Description: 10Base-T/100Base-TX Transceiver ................................................................................................ 15
100Base-TX Transmit ........................................................................................................................................................ 15
100Base-TX Receive ......................................................................................................................................................... 15
Scrambler/De-Scrambler (100Base-TX Only) ................................................................................................................... 15
10Base-T Transmit ............................................................................................................................................................ 15
10Base-T Receive ............................................................................................................................................................. 16
SQE and Jabber Function (10Base-T Only)...................................................................................................................... 16
PLL Clock Synthesizer ...................................................................................................................................................... 16
Auto-Negotiation ................................................................................................................................................................ 16
MII Data Interface .................................................................................................................................................................. 18
MII Signal Definition ........................................................................................................................................................... 18
Transmit Clock (TXC) .................................................................................................................................................... 18
Transmit Enable (TXEN) ................................................................................................................................................ 18
Transmit Data[3:0] (TXD[3:0]) ........................................................................................................................................ 19
Transmit Error (TXER) ................................................................................................................................................... 19
Receive Clock (RXC) ..................................................................................................................................................... 19
Receive Data Valid (RXDV) ........................................................................................................................................... 19
Receive Data[3:0] (RXD[3:0]) ........................................................................................................................................ 19
Receive Error (RXER) .................................................................................................................................................... 19
Carrier Sense (CRS) ...................................................................................................................................................... 20
Collision (COL) ............................................................................................................................................................... 20
MII Signal Diagram ............................................................................................................................................................ 20
Back-to-Back Mode – 100Mbps Copper Repeater ............................................................................................................... 21
MII Back-to-Back Mode ..................................................................................................................................................... 21
MII Management (MIIM) Interface ......................................................................................................................................... 22
Interrupt (INTRP) ................................................................................................................................................................... 23
HP Auto MDI/MDI-X .............................................................................................................................................................. 23
Straight Cab le .................................................................................................................................................................... 23
Crossover Cable ................................................................................................................................................................ 24
Loopback Mode ..................................................................................................................................................................... 24
Local (Digital) Loopback .................................................................................................................................................... 24
Remote (Analog) Loopback ............................................................................................................................................... 25
LinkMD® Cab le Di agn os tic .................................................................................................................................................... 27
NAND Tree Support .............................................................................................................................................................. 27
NAND Tree I/O Testing ..................................................................................................................................................... 28
Power Manag ement .............................................................................................................................................................. 29
Power-Saving Mode .......................................................................................................................................................... 29
Energy-Detect Power-Down Mode .................................................................................................................................... 29
Power-Down Mode ............................................................................................................................................................ 29
Slow-Oscillator Mode ......................................................................................................................................................... 29
Efficient Ethernet (EEE) ........................................................................................................................................................ 30
Transmit Direction Control (MAC-to-PHY) ........................................................................................................................ 30
Receive Direction Control (PHY-to-MAC) ......................................................................................................................... 31
Register s Ass ociate d w ith EEE ......................................................................................................................................... 31